The writer began with a clear account of the discoveries of modern psychologists and physiologists as to the physical basis of the intellect, by which it has been ascertained that certain ones of the millions of nerve corpuscles or fibres in the grey substance in the brain, record certain classes of sensations and the ideas directly connected with them, other classes of sensations with the corresponding ideas being elsewhere recorded by other groups of corpuscles. These corpuscles of the grey matter, these mysterious and infinitesimal hieroglyphics, constitute the memory of the record of the life, so that when any particular fibre or group of fibres is destroyed certain memories or classes of memories are destroyed, without affecting others which are elsewhere embodied in other fibres. Of the many scientific and popular demonstrations of these facts which were adduced, reference was made to the generally known fact that the effect of disease or injury at certain points in the brain is to destroy definite classes of acquisitions or recollections, leaving others untouched. The article then went on to refer to the fact that one of the known effects of the galvanic battery as medically applied, is to destroy and dissolve morbid tissues, while leaving healthy ones unimpaired. Given then a patient, who by excessive indulgence of any particular train of thought, had brought the group of fibres which were the physical seat of such thoughts into a diseased condition, Dr. Gustav Heidenhoff had invented a mode of applying the galvanic battery so as to destroy the diseased corpuscles, and thus annihilate the class of morbid ideas involved beyond the possibility of recollection, and entirely without affecting other parts of the brain or other classes of ideas. The doctor saw patients Tuesdays and Saturdays at his office, 79 ---- Street. Madeline was not crazy, thought Henry, as still standing under the hall lamp he closed the article, but Dr. Heidenhoff certainly was. Never had such a sad sense of the misery of her condition been borne in upon him, as when he reflected that it had been able to make such a farrago of nonsense seem actually creditable to her. Overcome with poignant sympathy, and in serious perplexity how best he could deal with her excited condition, he slipped out of the house and walked for an hour about the streets. Returning, he knocked again at the door of her parlour. "Have you read it?" she asked, eagerly, as she opened it. "Yes, I've read it. I did not mean to send you such trash. The man must be either an escaped lunatic or has tried his hand at a hoax. It is a tissue of absurdity." He spoke bluntly, almost harshly, because he was in terror at the thought that she might be allowing herself to be deluded by this wild and baseless fancy, but he looked away as he spoke. He could not bear to see the effect of his words.